Improvement in hot-air furnaces



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IMPROVEMENT IN HOT-AIR FURNAGES.

TO ALL WHOH IT MAY'OONCERN:

Be it kn'own that I, CHARLES W. TROTTER, of iRochcster, in the county of Monroe, and State of New York, have invented a new and valuable Improvement in' Hot-Air Fu'rnaces; and I do hereby declare that the following is a full and cxact description thereof, reference being had to the accomoanving -drawings, and to the letters of reference marked thereon:

Figure 1, Plate I, represents a side elevation of the furnace.

Figure 2, Plate I, represents a cross-section of the furnace from front to rear.

Figure 3, Plate II, represents a top view of the lower part of the furnace, including a view of the fire-pot, grate, gas retort, water tanks, opening for cold air to pass in, and ash-pit` Figure 4, Plate II, shows a cross-section of the tubular body with hot-air tubes.

Figure 5, Plate III, represents the upper part of the furnace or top view of radiator, also showing onehalf of. smoke pipes shut by means of a sliding plate or damper.

Figure G, Plate III, is a cover for fig. 5.

Figure 7, Plate II, is the water tank.

Figure 8, Plate II, gas retort.

Figure 9, Plate III, represents a portion of the plate or damper in the radiator.

The nature of my invention consists in the construction of a radiator for hot-air furnaces, as hereafter described.

cl d d d represent short smoke flues cast solid to'the radiator e, as shown i'n figs. 1, 2, and 5, for the purpose.

of oonducting the smoke and gas into the radiator e. 'This 1'a`diator,.e, is provided with a Partition, x x, which may be seen in'figs. 2 and. 5. Said partition xis intended to assist dividing or regulating the draught, which is very readily done by ineansofpa damper or sliding plate, 1) pp 1), as shown in fig. 5. The sliding plate p consists of a cost-,iron ring or plate, made to fit between the outside wall and middle partition, x, of Iradiator e, nllowing the same to slide to and fro by means of' a handle and connection at o o, for the purpose of regulating the draught. The smoke fiues enter'at the bottom of the radiator e, and their openings are divided by the centre partition x. The plate or damper pp is provided with notches, qq q q, as seen in figs. 5 and 9, cut out to 'fit over the openings of smoke pipes entering into the space between the outside wall and the centre partition of the radiator e.

The openings in the smolfe-pipes can be closed by moving the platepp to and fro. When open, the draught will be direct,/and assistin a'lnarked dcgreein starting the fire. When the openings are closed the drnught will he indireit,v and the smok/ei` and gas will have -to passa'round the inside space of the radiator e 'towards the front, through an opening at iw? w, to the outside space, between outside Wall and 'centre partition. The opening at w w is reculated by a damper, n n. By having the daroper or plate p closed the hot smoke and gas will have to pass around the inside andH outside space of the radiator e, thus.. giving also a great deal of heat. The slid'ing platep also cleans the 'outside space of the radiator eof accumulating ashes by drawing them back in the furnace below when moved. 'r is the smoke pipe. t I i Figure 9 is a portion of plate or damper p with notches, q q q, cut out.

Figure 6 is a cover, fitted close to the top ofv the radiator c, and held down by means of rods at s 8 s.

Figure 7 isa water tank, of which the furnace contains two, one on each side. They are hung inside the base of the furnace, and far enough away froln the firc to prevent the water from boiling. The tanks can readily be filled with Water by means of doors and openings in the outside easing t t on two sides.

Figure 8 represents gas rctort, also shown in figs. 2 and 3, causing no extra joint in the furnace, and no connection with hot-air ehamber, as the air is brought -in by means of a pipe, m, from the outside of the furnace.

The blue arrows in figs. 1 and 2 represent the cold air passing in and around the furnace. The red arrows represent the passage of the generated heat; and the blach arrows in fig. show the passage and exit of the gas and smoke. i I i i What I claim as my invention, and for which I desire to obtain Letters Patent, is-

I claim the peculiar construction of the radiator e, with`-centre Partition x, the sliding plate p, and also the damper w.

QHAS W. TRQTTR.,

Witnesses B. Gonnnnemenn, Gno. Fntunnsnnesa. 

